Honeywell Pressure Switch Hermann Micra 2 Ref. 049003163

Hermann boilers compatible with reference 049003163

Pressure switch with reference 049003163. 12 verified compatibilities: Micra 2 24 E and Micra 2 24-30 SE.

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 ref. 049003163 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 049003163. If it is not visible, do not identify the part from 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 pressure switch 049003163 resolves.

The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  The boiler is locking out with a pressure fault and the burner does not ignite.

  Cause: The pressure switch does not close the contact that allows ignition, so the control board thinks that the pressure is not correct and interrupts the sequence.

  Before replacing it, check that the pressure switch connection tube is not blocked, bent, or disconnected.

• 02

  The boiler works well, but the burner never ignites.

  Cause: This indicates that the pressure switch is not providing the continuity signal, even though the actual pressure is correct.

  Measure with a multimeter if there is continuity in the terminals of the pressure switch when the pressure should be sufficient for it to operate.

• 03

  The pressure switch gets stuck or does not respond after not using the boiler, such as after the summer.

  Cause: The internal contacts can oxidize or seize up over time and with lack of use, preventing them from making the 'click' when changing pressure.

  Before replacing it, try to operate it manually if possible, or gently tap it to see if it responds after being idle.

• 04

  The pressure lock occurs suddenly, without having touched anything in the installation.

  Cause: The wear of the diaphragm or the NC-NO contact can fail without prior warning, unrelated to any recent handling.

  First, check if there is a leak or a real drop in pressure in the circuit with a manometer, so you don't change the pressure switch if the problem is a real pressure issue.

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.

Hermann 049003163 pressure switch datasheet

Catalogue reference

049003163

Brand

Hermann

Type of part

Pressure switches

Units in stock

5 units

Status

Refurbished

Warranty

1 year

Shipping

1-2 business days

Return

14 days

Data read on the part and in the manufacturer's documentation

What we have not been able to verify does not appear here.

Manufacturer

Honeywell (Yamatake brand printed alongside Honeywell on the label)

Component code

C6065FH1821:2

Voltage

250V~

Contact upload

1.5(0.5) [unit not clear on the label, possibly A]

Switching pressure (P+)

1.04 mbar

Maximum pressure

6 mbar

CE code

CE-0063AP3085/1

Date/lot code

0705F

Place of manufacture

Made in China