Novoferm garage door opener light does not turn on at all, even though the door operates normally.

Safety first: Disconnect mains power before changing bulbs.

Steps to try:

• Replace bulb: Fit a new bulb of the correct type and wattage specified by Novoferm.
• Clean contacts: Inspect the lamp holder and clean any corrosion from the contacts.
• Check voltage: With appropriate caution and a multimeter, verify if voltage is present at the lamp holder when the light should be on. If not, the control board light circuit may be faulty.