Vokera Overheat Trip or Poor Circulation

Furnace starts but shuts down after a few minutes, house never reaches set temperature

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Blocked system filter, Air-locked system, Failing circulation pump, Closed radiator valves

Safety: Allow system to cool before touching pipework.

Check radiators/emitters: Ensure that enough radiators or air handlers are open to allow proper flow.
Clean system filter: If a filter is installed, isolate and clean it.
Bleed air: Bleed radiators or vents to remove trapped air.
Listen for pump: If the pump is noisy or silent when there is a heat demand, it may need replacement by a technician.

Medium 3/5

System Circulation Pump

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