ATAG fault code 938
Fault code 938 on an ATAG heat pump (including ENERGION IDM and ENERGION IDM 2Z) means: Anode error. Reset the appliance once. If the code comes back, a part is usually faulty, often the protective anode of the water heater. You can check the water pressure and settings yourself; leave work on gas-carrying parts to a certified gas engineer.
After a safety alert (gas, flue gas, combustion), reset no more than once and call in a certified gas engineer. If you smell gas, call your national gas emergency number or 112 immediately.
Cause
Fault code 938 on an ATAG heat pump indicates: Anode error.
Applies to
ATAG ENERGION IDM, ENERGION IDM 2Z, ENERGION IDM F, ENERGION IDM F 2Z, ENERGION IDM HYBRIDALL, ENERGION IDM HYBRIDzone, ENERGION IDM L, ENERGION IDM L F, 3301759, 3301760, 3301761, 3301762, 3301763, 3301764, 3302241, 3302242.
Matching parts
ATAG parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
Parts per Atag-series: A Series · i Series (iCon) · Q Series · E Series · P-series (iCon) · Blauwe Engel · XL-series.
Based on the cause, these original ATAG parts fit (always check the type number of your appliance):
- Atag anode D:33 l=350 M8 61314319 € 39.95
- Atag anode electric BRDN 65111197 € 25.95
- Atag anode protech ext. l:260 60002112 € 53.95
Further reading on this cause
- Read also: replace the anode before the tank fails
- All anodes of all brands, with part number and price
Fix it yourself or call an engineer?
Always consult the manual for your appliance and work safely. If in doubt or if the fault comes back, call in a qualified professional. A question about a part? Write to us at info@instalpunt.nl.
Frequently asked questions
What does ATAG heat pump fault code 938 mean?
Anode error.
How do I fix fault code 938 on an ATAG heat pump?
First check the cause described above. Then restart the appliance using the reset button. If the message comes back, a part usually needs replacing or the fault needs to be repaired by a qualified professional.
Which parts do I need for ATAG fault code 938?
That depends on the exact cause. In the ATAG parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code 938 myself?
You can reset the appliance and check things like the water pressure or settings yourself. Work on gas-carrying parts must be left to a certified gas engineer.
All ATAG heat pump faults and codes at a glance →