Question 1

On AC power, the refrigerator won't run at all.

Accepted Answer

Possible cause: A defective fuse in the AC mains, the vehicle not being plugged into an AC supply, or a defective AC heating element.. Replace the fuse, connect to the AC mains, or contact authorised customer service if the heating element is at fault.

Question 2

On DC power, the refrigerator won't run at all.

Accepted Answer

Possible cause: A defective fuse in the DC supply or on the relay, a blown vehicle fuse, a discharged vehicle battery, the ignition not switched on, or a defective DC heating element.. Replace the relevant fuse, test and charge the battery, switch on the ignition, or contact authorised customer service if the heating element is at fault.

Question 3

On gas, the refrigerator won't run at all.

Accepted Answer

Possible cause: An empty gas cylinder, a closed gas valve, or air in the supply line.. Replace the gas cylinder, open the valve, or turn the refrigerator off and back on - repeat 3-4 times if needed, and try the hob too if one's available.

Question 4

In automatic mode, the refrigerator runs on gas despite being connected to the mains.

Accepted Answer

Possible cause: Mains voltage has dropped too low.. No action needed - the refrigerator switches back to mains power automatically once the voltage is sufficient again.

Question 5

The refrigerator isn't cooling as well as it should.

Accepted Answer

Possible cause: Could be insufficient ventilation around the cooling unit, an iced-up evaporator, too high a temperature setting, too high an ambient temperature, too much food (or too much warm food) added at once, or simply not enough running time yet.. Check the ventilation grille isn't obstructed, confirm the door and seal close properly and defrost if iced up, lower the temperature setting, remove excess or warm food, and check again after 4-5 hours running.

Coachman Refrigeration & Cooling

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Possible Cause	Step-by-Step DIY Fix	Suggested Actions
`N/A`	On AC power, the refrigerator won't run at all.	A defective fuse in the AC mains, the vehicle not being plugged into an AC supply, or a defective AC heating element.	Replace the fuse, connect to the AC mains, or contact authorised customer service if the heating element is at fault.	DIY Check / Tech Fallback
`N/A`	On DC power, the refrigerator won't run at all.	A defective fuse in the DC supply or on the relay, a blown vehicle fuse, a discharged vehicle battery, the ignition not switched on, or a defective DC heating element.	Replace the relevant fuse, test and charge the battery, switch on the ignition, or contact authorised customer service if the heating element is at fault.	DIY Check / Tech Fallback
`N/A`	On gas, the refrigerator won't run at all.	An empty gas cylinder, a closed gas valve, or air in the supply line.	Replace the gas cylinder, open the valve, or turn the refrigerator off and back on - repeat 3-4 times if needed, and try the hob too if one's available.	DIY Safe
`N/A`	In automatic mode, the refrigerator runs on gas despite being connected to the mains.	Mains voltage has dropped too low.	No action needed - the refrigerator switches back to mains power automatically once the voltage is sufficient again.	DIY Safe
`N/A`	The refrigerator isn't cooling as well as it should.	Could be insufficient ventilation around the cooling unit, an iced-up evaporator, too high a temperature setting, too high an ambient temperature, too much food (or too much warm food) added at once, or simply not enough running time yet.	Check the ventilation grille isn't obstructed, confirm the door and seal close properly and defrost if iced up, lower the temperature setting, remove excess or warm food, and check again after 4-5 hours running.	DIY Safe