First of all, you need to know what’s causing the problem.

Is it a thermostat fault? Or the heating element? Use our advice to find out: I’m running out of hot water. What should I do? – Cotherm

Now that you’ve been able to estimate the source of the problem, you need to contact your distributor. Thanks to the interactive map available on our website, you can easily locate the distributor partner nearest you.

Before calling the retailer, here is the information we recommend you have in order to facilitate the exchange:

• The current situation
  • Describe the problem you are facing.
• If the problem seems to be with the thermostat, you will need to supply :
  • Your thermostat references
    • You need to locate two series of numbers written in black ink (not engraved).
    • One corresponds to the week and year of production, the other to the product reference.

• If the problem seems to be with the resistor, you will need to supply :
  • Your water heater’s identification card
    • You’ll find it on the back or underside of your water heater.
    • Your contact may ask you for the power rating of your water heater, as well as its item code (or serial number).

If you go straight to the site, it’s best to take your thermostat with you!

If you think the problem is with the heating element, take a photo of the identification card! This will enable you to provide all the necessary information to the professional in front of you.

With this information you can quickly obtain your original spare part and once again enjoy the comfort offered by our

Made in Cotherm technologies!