Troubleshooting

UVS33/36 Vent-Free Heaters

Troubleshooting

Honeywell

START

CHECK

• Gas Supply On

YES

Pilot Lights with Piezo Ignitor

YES

Pilot Stays Lit

YES

Pilot Lights Main Burner

YES

NO

 

• Supply line hooked up

 

Shutoff valve open

Lockout has engaged. Wait 60 seconds and try again

For spark at electrode while

NO Honeywell depressing Piezo

1/8" gap to pilot hood needed

All wiring connections

Replace Piezo ignitor

For air in lines

Thermopile needs a minimum 325mV. Adjust pilot flame height

All wiring connections

NO

 

 

 

• Replace Thermopile

 

 

 

• Thermocouple needs a minimum

 

 

 

 

 

 

 

 

of 14mV.

 

 

 

 

• Defective valve. turn to pilot,

 

 

 

 

meter should read greater than

 

 

 

 

100mV. If not, replace

 

 

 

 

• Valve is turned on

 

 

 

 

• Wall switch is not turned on.

NO

 

 

 

Watch for grounded wires!

 

 

 

 

 

 

 

• Thermopile needs a minimum

 

 

 

 

325mV.

 

 

 

 

• Plugged burner orifice

System OK

20002211

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Majestic Appliances UVS33RN, UVS33RP, UVS36RN Troubleshooting, Honeywell, UVS33/36 Vent-FreeHeaters, Start, Check, 20002211