Energy Kinetics
Energy Kinetics Boilers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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CIRC ERROR
Display shows CIRC ERROR or PUMP FAULT; some or all zones do not circulate hot water.
Circulator Pump Failure or Control Fault
DHW PRIORITY LOCKOUT
Display indicates DHW PRIORITY LOCKOUT; space heating zones are off and hot water call is not satisfied.
Domestic Hot Water Priority Timeout
DOMESTIC SENSOR FAIL
Control indicates DOMESTIC SENSOR FAIL; hot water production may be erratic or disabled.
Domestic Hot Water Sensor Failure
ECONOMY SENSOR ERROR
Energy Manager shows ECONOMY SENSOR ERROR; system may not adjust firing based on demand.
Energy Manager Economy Sensor Fault
EM ERROR
Display shows EM ERROR or ENERGY MANAGER FAULT; boiler and zones may not operate correctly.
Energy Manager Control Failure
FLAME FAIL
Burner lights briefly then shuts down; control reports FLAME FAIL or FLAME LOSS.
Flame Loss During Run
FLUE TEMP HIGH
Display shows FLUE TEMP HIGH; burner shuts down due to excessive stack temperature.
Excessive Flue Gas Temperature
HARD LOCKOUT
Control shows HARD LOCKOUT; burner will not attempt to start until manually reset at the control.
Hard Safety Lockout Due to Repeated Failed Trials
HIGH LIMIT
Display shows HIGH LIMIT or boiler shuts down at high temperature; burner cycles off before zones are heated.
High Limit Temperature Trip
IGNITION FAIL
Control indicates IGNITION FAIL; burner motor may run but flame never establishes.
Ignition System Failure
LOCKOUT
Boiler display shows LOCKOUT and burner will not fire; no heat or hot water.
Primary Safety Lockout
LOW WATER
Boiler display shows LOW WATER or LWCO; burner is locked out and circulators may be disabled.
Low Water Cutoff Trip
LWCO
Control indicates LWCO; burner will not fire even though system appears full.
Low Water Cutoff Sensor or Wiring Fault
NO FLAME
Display or burner control indicates NO FLAME or FLAME FAIL during trial for ignition; burner shuts down.
Flame Detection Failure
OUTDOOR SENSOR FAIL
Display shows OUTDOOR SENSOR FAIL; outdoor reset function is disabled and boiler may run at higher temperatures.
Outdoor Temperature Sensor Failure
PLATE HX TEMP ERROR
Control shows PLATE HX TEMP ERROR; boiler may shut down during domestic hot water production.
Plate Heat Exchanger Temperature Fault
POWER LOSS ERROR
Energy Manager logs POWER LOSS ERROR; time or settings may reset and boiler may not follow schedules.
Control Power Interruption
RETURN TEMP LOW
Display indicates RETURN TEMP LOW; boiler may short-cycle or limit firing rate.
Low Return Water Temperature Protection
SOFT LOCKOUT
Display indicates SOFT LOCKOUT; burner may attempt to start but shuts down after a short period.
Soft Lockout Due to Repeated Ignition or Flame Failure
SUPPLY TEMP HIGH
Control shows SUPPLY TEMP HIGH; boiler shuts down or modulates to protect system.
High Supply Water Temperature
TEMP SENSOR FAIL
Control displays TEMP SENSOR FAIL or SENSOR ERROR; boiler may not fire or may run erratically.
Boiler Temperature Sensor Failure
TSTAT ERROR
Display shows TSTAT ERROR or THERMOSTAT FAULT; zones do not call for heat correctly.
Thermostat or Zone Input Fault
VENT BLOCK
Control indicates VENT BLOCK or BLOCKED FLUE; burner shuts down and will not restart until cleared.
Blocked Vent or Flue Safety Trip
ZONE VALVE ERROR
Control indicates ZONE VALVE ERROR; one or more zones do not heat even when thermostat calls.
Zone Valve Actuation Failure
Symptom
Boiler components or piping show visible corrosion, rust, or green staining around joints.
Corrosion / Slow Leak
Symptom
Boiler cycles on even when no thermostats are calling for heat; piping gets warm unexpectedly.
Ghost Flow / Unwanted Circulation
Symptom
Boiler or burner is unusually loud during operation, with rumbling or roaring sounds.
Combustion Noise / Burner Instability
Symptom
Boiler or near-boiler piping is making loud banging or knocking noises, especially when starting or stopping.
Water Hammer or Expansion Noise
Symptom
Boiler pressure rises significantly when heating and may approach or exceed relief valve setting.
Overpressure / Expansion Tank Failure
Symptom
Boiler runs but house is not heating adequately; some or all rooms remain cold.
Insufficient Heat Output
Symptom
Boiler short-cycles, turning on and off frequently without long run times.
Short Cycling
Symptom
Boiler will not start at all; no lights on Energy Manager and burner is off.
No Power to Boiler
Symptom
Domestic hot water is excessively hot, causing scald risk at faucets.
Overheated Domestic Hot Water
Symptom
Gas smell near the boiler or gas piping.
Gas Leak
Symptom
No domestic hot water or hot water runs out quickly, but space heating works.
Domestic Hot Water Production Failure
Symptom
Oil smell around the boiler or in the basement, especially after burner operation.
Oil Leak or Poor Combustion Odor
Symptom
Some baseboards or radiators are hot while others remain cold within the same zone.
Air Bound or Partially Blocked Loop
Symptom
Soot or smoke is visible at the boiler or from the chimney; dark stains may appear around the burner door.
Sooting / Incomplete Combustion
Symptom
Water leaking from around the boiler, piping, or relief valve discharge pipe.
System Water Leak / Relief Valve Discharge
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CIRC ERROR |
Display shows CIRC ERROR or PUMP FAULT; some or all zones do not circulate hot water.
|
Circulator Pump Failure or Control Fault | View Details |
| DHW PRIORITY LOCKOUT |
Display indicates DHW PRIORITY LOCKOUT; space heating zones are off and hot water call is not satisfied.
|
Domestic Hot Water Priority Timeout | View Details |
| DOMESTIC SENSOR FAIL |
Control indicates DOMESTIC SENSOR FAIL; hot water production may be erratic or disabled.
|
Domestic Hot Water Sensor Failure | View Details |
| ECONOMY SENSOR ERROR |
Energy Manager shows ECONOMY SENSOR ERROR; system may not adjust firing based on demand.
|
Energy Manager Economy Sensor Fault | View Details |
| EM ERROR |
Display shows EM ERROR or ENERGY MANAGER FAULT; boiler and zones may not operate correctly.
|
Energy Manager Control Failure | View Details |
| FLAME FAIL |
Burner lights briefly then shuts down; control reports FLAME FAIL or FLAME LOSS.
|
Flame Loss During Run | View Details |
| FLUE TEMP HIGH |
Display shows FLUE TEMP HIGH; burner shuts down due to excessive stack temperature.
|
Excessive Flue Gas Temperature | View Details |
| HARD LOCKOUT |
Control shows HARD LOCKOUT; burner will not attempt to start until manually reset at the control.
|
Hard Safety Lockout Due to Repeated Failed Trials | View Details |
| HIGH LIMIT |
Display shows HIGH LIMIT or boiler shuts down at high temperature; burner cycles off before zones are heated.
|
High Limit Temperature Trip | View Details |
| IGNITION FAIL |
Control indicates IGNITION FAIL; burner motor may run but flame never establishes.
|
Ignition System Failure | View Details |
| LOCKOUT |
Boiler display shows LOCKOUT and burner will not fire; no heat or hot water.
|
Primary Safety Lockout | View Details |
| LOW WATER |
Boiler display shows LOW WATER or LWCO; burner is locked out and circulators may be disabled.
|
Low Water Cutoff Trip | View Details |
| LWCO |
Control indicates LWCO; burner will not fire even though system appears full.
|
Low Water Cutoff Sensor or Wiring Fault | View Details |
| NO FLAME |
Display or burner control indicates NO FLAME or FLAME FAIL during trial for ignition; burner shuts down.
|
Flame Detection Failure | View Details |
| OUTDOOR SENSOR FAIL |
Display shows OUTDOOR SENSOR FAIL; outdoor reset function is disabled and boiler may run at higher temperatures.
|
Outdoor Temperature Sensor Failure | View Details |
| PLATE HX TEMP ERROR |
Control shows PLATE HX TEMP ERROR; boiler may shut down during domestic hot water production.
|
Plate Heat Exchanger Temperature Fault | View Details |
| POWER LOSS ERROR |
Energy Manager logs POWER LOSS ERROR; time or settings may reset and boiler may not follow schedules.
|
Control Power Interruption | View Details |
| RETURN TEMP LOW |
Display indicates RETURN TEMP LOW; boiler may short-cycle or limit firing rate.
|
Low Return Water Temperature Protection | View Details |
| SOFT LOCKOUT |
Display indicates SOFT LOCKOUT; burner may attempt to start but shuts down after a short period.
|
Soft Lockout Due to Repeated Ignition or Flame Failure | View Details |
| SUPPLY TEMP HIGH |
Control shows SUPPLY TEMP HIGH; boiler shuts down or modulates to protect system.
|
High Supply Water Temperature | View Details |
| TEMP SENSOR FAIL |
Control displays TEMP SENSOR FAIL or SENSOR ERROR; boiler may not fire or may run erratically.
|
Boiler Temperature Sensor Failure | View Details |
| TSTAT ERROR |
Display shows TSTAT ERROR or THERMOSTAT FAULT; zones do not call for heat correctly.
|
Thermostat or Zone Input Fault | View Details |
| VENT BLOCK |
Control indicates VENT BLOCK or BLOCKED FLUE; burner shuts down and will not restart until cleared.
|
Blocked Vent or Flue Safety Trip | View Details |
| ZONE VALVE ERROR |
Control indicates ZONE VALVE ERROR; one or more zones do not heat even when thermostat calls.
|
Zone Valve Actuation Failure | View Details |
| – |
Boiler components or piping show visible corrosion, rust, or green staining around joints.
|
Corrosion / Slow Leak | View Details |
| – |
Boiler cycles on even when no thermostats are calling for heat; piping gets warm unexpectedly.
|
Ghost Flow / Unwanted Circulation | View Details |
| – |
Boiler or burner is unusually loud during operation, with rumbling or roaring sounds.
|
Combustion Noise / Burner Instability | View Details |
| – |
Boiler or near-boiler piping is making loud banging or knocking noises, especially when starting or stopping.
|
Water Hammer or Expansion Noise | View Details |
| – |
Boiler pressure rises significantly when heating and may approach or exceed relief valve setting.
|
Overpressure / Expansion Tank Failure | View Details |
| – |
Boiler runs but house is not heating adequately; some or all rooms remain cold.
|
Insufficient Heat Output | View Details |
| – |
Boiler short-cycles, turning on and off frequently without long run times.
|
Short Cycling | View Details |
| – |
Boiler will not start at all; no lights on Energy Manager and burner is off.
|
No Power to Boiler | View Details |
| – |
Domestic hot water is excessively hot, causing scald risk at faucets.
|
Overheated Domestic Hot Water | View Details |
| – |
Gas smell near the boiler or gas piping.
|
Gas Leak | View Details |
| – |
No domestic hot water or hot water runs out quickly, but space heating works.
|
Domestic Hot Water Production Failure | View Details |
| – |
Oil smell around the boiler or in the basement, especially after burner operation.
|
Oil Leak or Poor Combustion Odor | View Details |
| – |
Some baseboards or radiators are hot while others remain cold within the same zone.
|
Air Bound or Partially Blocked Loop | View Details |
| – |
Soot or smoke is visible at the boiler or from the chimney; dark stains may appear around the burner door.
|
Sooting / Incomplete Combustion | View Details |
| – |
Water leaking from around the boiler, piping, or relief valve discharge pipe.
|
System Water Leak / Relief Valve Discharge | View Details |
No matching codes found
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