Troubleshooting - Desa TC106 Manual Del Propietário

WARNING: Never service heater while it is plugged in, connected
to propane supply, operating or hot. Severe burns and electrical
shock can occur.
ObSERvED FAuLT
Burner fails to light
Pilot lights but goes out when
automatic control valve but-
ton is released (200,000 Btu
models only)
Burn rate is low
8

tROuBLESHOOtINg

POSSIbLE CAuSE
1. Propane supply valve
closed on propane tank(s)
2. Excess flow check valve
closed
3. Blockage in burner orifice
4. Piezo ignition system not
sparking
5. Pilot orifice clogged
(200,000 Btu models only)
1. Not enough warm up time
2. Low gas pressure
3. Thermocouple loose or
needs to be replaced
4. Automatic control valve
needs to be replaced
1. Control valve is on LOW
2. Plugged gas orifice
3. Low gas pressure
4. Low fuel supply
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REMEDy
1. Open propane supply valve
slowly
2. Close propane supply valve
on propane tank and re-
open slowly
3. Replace burner orifice
4. Check to assure ignitor
electrode gap is 0.195"
Check wire lead for dam-
age. Replace piezo ignitor
and/or ignitor electrode as
necessary
5. Clean or replace pilot as-
sembly
1. Relight, hold automatic
control valve button in 45
seconds
2. Check propane tank(s) for
proper gas supply
3. Tighten connection or re-
place thermocouple
4. Replace automatic control
valve
1. Turn valve counter clock-
wise to HIGH
2. Replace gas orifice
3. Check gas supply; check
regulator output
4. Consult propane gas sup-
plier
119588-01A