Junkers Euromaxx ZWC28 1MF2A Secondary Plate Heat Exchanger Ref. 87167710390

Junkers boilers compatible with reference 87167710390

Plate heat exchanger with reference 87167710390. Eight confirmed compatibilities: EUROMAXX ZWC 24-1 MFA and EUROMAXX ZWC 28-1 MFA.

Proven compatibility

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 ref. 87167710390 is the part for your boiler

What determines it is not the boiler model, but the reference printed on the part you already have installed.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 87167710390. If it is not visible, do not identify the part by its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms and faults that the heat exchanger 87167710390 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

  The hot water is coming out less and less hot, even though the burner ignites without any issues.

  Cause: Calcium accumulates inside the plates and reduces the surface area that transfers heat to the water.

  Before replacing it, check if it improves after a chemical cleaning of the heat exchanger with descaling liquid.

• 02

  When opening a hot water tap, the pressure in the heating circuit increases and the safety valve may start to leak.

  Cause: A cracked PCB allows water from one circuit to pass to the other within the heat exchanger.

  Check the pressure gauge just before and after opening the hot water tap: if the needle jumps up suddenly, it confirms the mixing between circuits.

• 03

  Water is leaking from underneath the boiler after it has been running for a while.

  Cause: The wear of the gaskets or a damaged PCB allows water to escape to the outside of the heat exchanger.

  Dry the area, start the boiler, and locate the exact point of the leak before assuming it is the heat exchanger and not a nearby pipe.

• 04

  The flow of hot water has decreased significantly, although the taps in the house are working well.

  Cause: The progressive obstruction due to scale narrows the internal passage of the plates and limits the flow that can pass through them.

  Check the cold water inlet filter of the boiler first, because a dirty filter gives the same symptom without affecting the heat exchanger.

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 data sheet Junkers 87167710390

Catalogue reference

87167710390

Brand

Junkers

Type of part

Plate heat exchanger

Units in stock

1 unit

Status

Refurbished

Warranty

1 year

Shipping

Delivery time shown at checkout

Return

14 days