Covers: Autoquest APEX CV, Autoquest CV, Autoquest CV Evolve
+1 more
Whirlwind GTVWhirlwind GTV models: CV554, CV560, CV563
Autoquest CV models: CV20, CV40, CV60, CV80
Autoquest CV Evolve models: CV20, CV40, CV60, CV80
Autoquest APEX CV models: CV20, CV40, CV60, CV80
Elddis Heating
(Campervan, 2026 Model Year)
Also Fitted To This Caravan
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
1 | Inadequate gas supply on Whale Heat Control (Space Heater) | — | 1. Check the gas supply.
2. Confirm the LPG pressure is 30mbar.
3. Move on to step 4 (Clear Lockout). | DIY Safe |
2 | Overheat on Whale Heat Control (Space Heater) | — | 1. Confirm the air vents and ducts aren't obstructed.
2. Allow 10 minutes for the heater to cool.
3. Move on to step 4 (Clear Lockout). | DIY Safe |
3 | Inadequate supply voltage on Whale Heat Control (Space Heater) | Supply voltage outside normal operating range (<10.5V or >15.9V d.c.) | Confirm the supply voltage falls within 10.5-15.9V DC (below 10.1V the heater simply won't operate). Then move on to step 4 (Clear Lockout). | DIY Safe |
4 | Flue blockage on Whale Heat Control (Space Heater) | — | 1. Check the flues for any blockage.
2. Move on to step 4 (Clear Lockout). | DIY Safe |
5 | Internal fault on Whale Heat Control (Space Heater) | — | 1. Contact Whale Support - the number is +44 (0)345 9090 911 (in Europe, use the enclosed Webasto Service information instead).
2. Move on to step 4 (Clear Lockout). | DIY Check / Tech Fallback |
6 | Control panel fault on Whale Heat Control (Space Heater) | — | 1. Switch it off.
2. Switch it back on. | DIY Safe |
7 | Multiple faults on Whale Heat Control (Space Heater) | — | 1. Switch off.
2. Check whether the heater has a recurring fault.
3. Switch back on.
4. Move on to step 4 (Clear Lockout). | DIY Safe |
Fault type #1 | Inadequate gas supply on Whale Heat Control Panel (Water Heater) | — | 1. Check the gas supply.
2. Use propane instead of butane whenever it's below 5°C.
3. Inspect the flue for blockages.
4. Move on to step 4 (Clear Lockout). | DIY Safe |
Fault type #2-3 | Overheat Fault on Whale Heat Control Panel (Water Heater) | — | 1. Make sure the heater is fully filled with water.
2. Open one hot tap and run the pump until water flows through steadily.
3. Move on to step 4 (Clear Lockout). | DIY Safe |
Fault type #4 | Low Voltage Fault (heater inoperable under 10.1V, <10.5 or >15.9V d.c.) on Whale Heat Control Panel (Water Heater) | — | Go to step 4 (Clear Lockout) | DIY Safe |
Fault type #5 | Air Pressure Fault on Whale Heat Control Panel (Water Heater) | — | 1. Check the flues for blockages.
2. Move on to step 4 (Clear Lockout). | DIY Safe |
Fault type #6-11 | Internal Fault on Whale Heat Control Panel (Water Heater) | — | 1. Move on to step 4 (Clear Lockout).
2. Contact Whale Support - their number is +44 (0)345 9090 911. | DIY Check / Tech Fallback |
Fault type #12 | Fault type #12 on Whale Heat Control Panel (Water Heater) | — | 1. Switch off.
2. Check whether the heater has a recurring fault.
3. Switch back on.
4. Move on to step 4 (Clear Lockout). | DIY Safe |