Truma
Truma Heating
Guidance for Truma Combi systems, CP Plus controls, hot water settings, common faults and troubleshooting.
- Fault codes and resets
- Hot water problems
- FrostControl valve advice
Help & Advice · Heating systems
Motorhome & Campervan Heating Guide
Practical heating advice for motorhome, campervan and caravan owners, including Truma, Alde, Whale, Webasto and Eberspacher systems.
Complete Campers Service Centre
Heating guides, fault advice and workshop support for owners across Torbay, Devon and the South West.
5 GuidesTruma, Alde, Whale, Webasto & Eberspacher
FaultsCommon symptoms explained
CareMaintenance and winter advice
PaigntonTorbay & South Devon
Heating is one of the most important comfort systems in any motorhome, campervan or caravan. A good heating system keeps the living space usable in cooler weather, helps protect the vehicle during winter and makes touring more comfortable outside the main summer season
This page brings together our main heating support guides, covering common systems such as Truma blown-air heating, Alde wet central heating, Whale heating, Webasto diesel heaters and Eberspacher diesel heaters. Use it as a starting point if you are trying to understand how your heating works, why it is showing a fault, or what simple checks you can carry out before booking a workshop inspection.
- Motorhome and campervan heating guides
- Fault code and troubleshooting advice
- Maintenance and winter care tips
- Professional workshop support in Paignton
1
Gas Heating
Common in Truma, Alde and Whale systems.
2
Diesel Heating
Used by Webasto and Eberspacher air heaters.
3
Wet Heating
Alde systems use glycol to circulate warmth.
4
Fault Codes
Modern systems often show warnings on the control panel.
Owner support
Heating system guides
Choose the guide that matches the heating system fitted to your motorhome, campervan or caravan.
Alde
Alde Heating
Help with Alde wet central heating, glycol checks, circulation pumps, pressure, hot water and radiator performance.
- Glycol maintenance
- Cold radiator advice
- Pressure and pump checks
Whale
Whale Heating
Support for Whale space heating and water heating systems, controls, fault symptoms and basic owner checks.
- Gas and electric operation
- Water heating faults
- Control panel guidance
Webasto
Webasto Heating
Advice for Webasto diesel air heaters, including fuel supply, low voltage, ignition issues and regular use.
- Diesel heater faults
- Low battery symptoms
- Smoke, smell and lockout advice
Eberspacher
Eberspacher Heating
Troubleshooting and care advice for Eberspacher diesel heaters used in campervans and motorhomes.
- Ignition issues
- Fuel and air intake checks
- Maintenance guidance
Workshop
Heating Diagnostics
If your system still will not work after basic checks, our service centre can inspect the vehicle and advise on the next step.
- Heating faults
- Hot water issues
- System checks and advice
Fault finding
Common motorhome heating faults
Different systems work in different ways, but many heating faults start with a few common causes.
No heat
Heating Not Working
Common causes include no gas supply, low battery voltage, incorrect settings, no diesel feed, blocked vents, or a system fault.
Hot water
No Hot Water
Check the water system is filled, the correct mode is selected, the gas or electric supply is available and the boiler has not drained down.
Voltage
Low Battery Voltage
Many heating systems rely on a healthy 12v supply. A weak leisure battery can cause failed starts, shutdowns and fault messages.
Fuel
Ignition or Fuel Problems
Gas systems need a good gas supply. Diesel heaters need clean fuel delivery, clear air intake and exhaust routes, and enough battery power to start.
Airflow
Poor Heat Output
Closed outlets, blocked vents, trapped air in wet systems, poor circulation or incorrect fan settings can all reduce heating performance.
Lockout
Repeated Fault Codes
Some systems lock out after repeated failed starts. Do not keep forcing resets if the same fault keeps returning.
Safety note: Heating systems can involve gas, diesel fuel, combustion, hot water and 12v electrics. If you smell gas, suspect a combustion fault, see repeated error codes, or are unsure, switch the appliance off and seek professional advice.
Care and prevention
Heating maintenance advice
A little routine care helps reduce faults and keeps your heating system ready for colder trips.
Prevention
Run the Heating Regularly
Using the heater periodically helps keep fans, pumps and fuel systems moving, especially if the vehicle is stored for long periods.
- Run before winter trips
- Check for unusual noises
- Confirm heat reaches all outlets
Power
Keep Batteries Healthy
A weak leisure battery is one of the most common causes of heating problems, especially with diesel heaters and electronic control panels.
- Check charge before travel
- Inspect charging performance
- Consider battery testing if faults appear
Winter
Drain Down Correctly
Systems that heat water need careful winter preparation. Frost damage can be expensive and is often preventable.
- Drain fresh water systems
- Understand frost protection valves
- Follow manufacturer guidance
When to book workshop support
1Fault Keeps ReturningIf the same warning appears after a reset, there may be an underlying issue.
2No Heat or Hot WaterIf basic checks do not restore operation, the system may need inspection.
3Gas or Fuel ConcernSwitch the appliance off if you smell gas, see smoke, or suspect combustion issues.
4Professional AdviceContact our Paignton workshop with the system make, vehicle details and symptoms.
Paignton workshop
Heating help in Paignton
Complete Campers Service Centre is based at Unit 13 Torbay Business Park, Woodview Road, Paignton, Devon TQ4 7HP.
Our workshop supports motorhome, campervan and caravan owners from Paignton, Torquay, Brixham, Newton Abbot, Totnes and across South Devon. If your heating system is not working properly, contact us with your vehicle details and a description of the issue.
Motorhome heating FAQs
Common questions about heating systems in motorhomes, campervans and caravans.
Why is my motorhome heating not working?
Common causes include low battery voltage, no gas or diesel supply, incorrect control settings, blocked vents, air in wet heating systems, or an appliance fault.
Why does my heater start then shut down?
This can happen when the appliance detects low voltage, failed ignition, poor fuel supply, poor airflow, overheating, or another safety-related fault.
Can I keep resetting a heating fault?
A one-off reset may clear a simple fault once the cause is corrected, but repeated resets are not recommended. If the same fault returns, the system should be inspected.
Should I run my heating during storage?
Running the system periodically can help keep components moving, but always follow the appliance guidance and make sure the vehicle is safely ventilated and supplied with suitable power and fuel.
How do I know which heating system I have?
Check the control panel, appliance label, handbook, or vehicle documentation. Common names include Truma, Alde, Whale, Webasto and Eberspacher.
Do you help with motorhome heating faults?
Complete Campers Service Centre can offer practical advice and workshop support for motorhome, campervan and caravan heating issues from our service centre in Paignton.
Need help with your motorhome heating?
If your heating system is not working, showing fault codes, or failing to heat water, contact Complete Campers Service Centre in Paignton for practical workshop advice.
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