Secondary Plate Heat Exchanger Hermann Micra Condens 26 Ref. HA00540043
When you open the hot water tap, the Secondary Plate Heat Exchanger Hermann Micra Condens 26 Ref. HA00540043 is responsible for transferring heat from the primary circuit to the domestic hot water instantly. If this part fails, you will notice that the water comes out lukewarm or has an oscillating temperature, as well as a reduced flow of DHW. This heat exchanger is compatible with the Hermann Micra Condens 26 boiler, among others. It is recommended to replace it if you observe these symptoms, as its malfunction directly affects the production of hot water.
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Consult via WhatsAppHermann boilers compatible with reference HA00540043
Plate heat exchanger with reference HA00540043. A proven compatibility: Micra Condens 26.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Hermann Micra Condens 26 | Hermann Micra Condens | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if the part number HA00540043 is the piece for your boiler.
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference HA00540043. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the plate heat exchanger HA00540043 resolves.
The plate heat exchanger transfers heat to the domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
There is water or moisture at the base of the boiler and you don't know where it's coming from.
Cause: The heat exchanger has leaks between the plates and water is escaping from there.
Dry the area well, place paper underneath, and turn on the boiler to see if the dripping appears right at the heat exchanger.
- 02
The boiler is working, but it takes longer to heat up and seems to consume more gas.
Cause: Limescale-covered plates transfer heat less efficiently, causing the boiler to work harder to heat the same amount.
Compare the time it takes for hot water to come out with the boiler filter clean before considering that it is the heat exchanger.
- 03
A whistling or vibrating sound is heard when opening the hot water tap.
Cause: The water is forced through plates with a reduced section due to limescale deposits.
Check if the noise only occurs when the hot water is open and stops when it is closed.
- 04
The flow of hot water is weaker than before.
Cause: Limescale reduces the flow through the plates, limiting the flow rate that can pass through the heat exchanger.
Compare the flow rate in cold and hot with the same tap: if it only decreases in hot, check the heat exchanger before replacing it.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Plate heat exchanger sheet Hermann HA00540043
- Catalogue reference
- HA00540043
- Brand
- Hermann
- Type of part
- Plate heat exchanger
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the plate heat exchanger HA00540043
Does this heat exchanger fit other Hermann boilers, or only the Micra Condens 26?
Is the number '523' marked on the plate the reference for this heat exchanger?
Why does the heat exchanger of a Hermann Micra Condens 26 fail and need to be replaced?
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