Whale SL5512, SL7512, SL5502, SL7502
Official technical documentation and workshop diagnostics for Heat Air 5 GTE & 6 GTE.
Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
Fault type #1 | Inadequate gas supply | Gas supply is insufficient, empty, or turned off | Check gas supply and ensure 30mbar LPG is available. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
Fault type #2 | Overheat | Air vents or ducts are restricted or blocked causing the heater to overheat | Make sure the air vents and ducts aren't restricted, then give the heater about 10 minutes to cool down. Contact an authorised service agent if that doesn't resolve it. | DIY Check / Tech Fallback |
Fault type #3 | Inadequate supply voltage | Battery supply voltage is outside the operating range of 10.5 - 15.9V DC (inoperable under 10.1V) | Ensure supply is ≥10.5 / ≤15.9V d.c. If <10.5 / >15.9V d.c., press and hold the Master switch on the control panel for more than 1 second to clear the lockout. | DIY Safe |
Fault type #4 | Flue blockage | Exhaust flue or combustion intake is blocked | Check flues for blockages. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
Fault types #5-11 | Internal fault | Internal system or electronic fault detected | Contact Whale Support or have repairs carried out by a specialist. | Professional Intervention Required |
Fault type #15 | Multiple faults | Multiple simultaneous system errors or recurring faults | Power off, check heater for recurring faults, and power on. If problems persist, contact Whale Support or have repairs carried out by a specialist. | DIY Check / Tech Fallback |
Frequently Asked Questions
Q: Can I fit a Heat Air heater myself?
If you're technically minded, yes - each Heat Air kit includes a detailed step-by-step installation guide. Otherwise, a local motorhome workshop should be able to fit it for you. Whoever fits it, a qualified gas engineer has to certify any gas work to BS EN 1949-2011.
Q: Which Heat Air model should I choose?
The models differ in heat output and fuel type, with options for both campervans and panel-van conversions - broadly, the bigger the vehicle, the more output you'll want. Gas-only suits off-grid touring; if you mostly stay on sites with hook-up, the gas-and-electric version adds 3kW of electric heating.
Q: Will Heat Air work when I'm off-grid?
Yes. Every Heat Air model can run on gas, and on its low gas setting it draws very little from the battery - as little as 0.6 A.