Coleman-Mach thermostat · 1 model line
Coleman-Mach thermostat: ELEC flashing
The Coleman-Mach 9630 heat pump thermostat guides say ELEC flashes when the heat pump is in lockout because electric heat could not satisfy the thermostat call.
What this message means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Coleman-Mach 9630-351 / 9630-352 / 9630-353 heat pump thermostats | The Coleman-Mach 9630 heat pump thermostat guides say ELEC flashes when the heat pump is in lockout because electric heat could not satisfy the thermostat call. | Coleman-Mach 9630-352 Heat Pump Installation, Operation & Application Guide Coleman-Mach 9630-351 and 9630-353 Heat Pump Installation, Operation & Application Guide |
What you can safely check
- Record thermostat model, zone, displayed word, mode, room temperature, set point, outside temperature estimate, and elapsed lockout time.
- Wait through the manual-described lockout period if the coach stays safe and warm enough.
- After the lockout clears, keep the electric-heat set point within four degrees of room temperature before trying again.
- Use normal backup heat controls during the lockout if available.
Stop and call a technician for
- Thermostat installation, wiring, base fuse, jumper configuration, 12 V electrical diagnosis, heat pump, compressor, furnace, and control-circuit work is trained technician work.
Use normal thermostat controls only. Stop electric heat attempts and call Coleman-Mach/Airxcel or qualified RV HVAC service if lockout repeats, the coach cannot be kept warm, or there are electrical symptoms.
Write this down before you call
- thermostat model
- thermostat ID
- zone name
- displayed word
- mode
- set point
- room temperature
Other codes on Coleman-Mach RV thermostats
Full table: Coleman-Mach RV thermostats
- Er Er displays when ambient temperature is outside the thermostat display range or when a re…
- HI HI displays when current temperature is above 99 F (37 C).
- LO LO displays when current temperature is below 33 F (0 C).
- DIFF flashing DIFF flashes on the LCD when 2nd stage heat is operating because the heat pump cannot sat…
- DIFF DIFF displays when backup heat is operating and the heat pump is locked out. / Coleman-Ma…
- FLASHING GAS HEAT Coleman-Mach's heat pump thermostat guide says FLASHING GAS HEAT can show during the two …
- Solid Green The device being connected to the network and communicating properly
- Off The device having no power or having completely failed
- Solid Red The device being offline and not connected to the network
- Fast Flashing Green (4 Times/Sec) The device attempting to make its initial network connection
- Slow Flashing Green (1 Time/Sec) The device having been online but having no valid network message for 5 seconds
- Alternating Red & Orange The device being offline and attempting to reconnect within 30 seconds
- Alternating Green & Orange The device being currently online but having gone offline 2 or more times