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Maxitrol GV60 remote valve: fireplace will not light or respond
What is going on
Fireplace with a Maxitrol GV60 battery-powered remote valve: no response, beeping, pilot or burner problems.
Likely causes
- Low or corroded receiver batteries (most common)
- Remote not communicating
- Motor or electrical fault
- Weak thermocouple circuit or valve magnet
- Vent problem (direct vent)
- Wrong inlet or manifold pressure
Check in this order
- Communication the remote should show MAN (manual) and a battery icon; pressing flame up/down should turn the valve knob. One beep with no knob movement = electrical problem; one long beep = motor failure; rapid beeps for 3 s = low battery.
- Batteries receiver battery voltage not less than 5.8 VDC. Corrosion in the battery box is the #1 service issue.
- Manual light knob to MAN, press the small tool into the large hole, light the pilot and hold 10 s, then turn back to ON - proves the thermocouple circuit and gas supply.
- Thermocouple red terminal to ground should read 10-15 mV.
- Startup yellow terminal to ground should read 5+ mV when the solenoid clunks in (battery holding the magnet). Red to yellow loss no more than 2-3 mV.
- Dropout shut off gas or blow out the pilot - the red terminal should drop out at about 2 mV; or time it: magnet reset in under 10 s = bad, over 20 s = good.
- Direct vent window test burns right with the glass off but not with it on = vent problem (restrictors are part of the vent).
- Gas pressure at full flow inlet 5-7 in. w.c. NG / 11-14 in. LP; manifold 3.5-4 in. NG / 9.5-10 in. LP (use the rating plate value). Close test ports and leak check.
Applies to: Fireplaces with Maxitrol GV60 remote valve systems
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Source: Maxitrol GV60 - 10 technical tests for troubleshooting. Written in our own words; check the manual for your exact model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.