Junkers Cerapur Air Pressure Switch Huba Ref. 8716106633

Junkers Cerapur Air Pressure Switch Huba Ref. 8716106633

15 €VAT includedIn stock · 5 units

Pressure switch: reconditioned spare part that controls air or water pressure to authorize operation. Useful if the boiler does not start or shows a draft error. Reference 8716106633. Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
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Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
8716106633
Brand
Junkers
Type of part
Pressure switches
Available units
5 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
C1The differential pressure switch has been activated during operation.The air pressure switch opens its contact during operation due to a fatigued diaphragm, defective microswitch, or loss of vacuum in the circuit; it is checked by measuring continuity at the pressure switch terminals while the fan is running and inspecting the hoses/Venturi connections.
C4The differential pressure indicator does not open with the fan disconnected.The air pressure switch remains stuck/closed (contacts adhered or false pressure due to incorrectly connected hoses); it is checked by cutting power to the fan and verifying that the pressure switch opens (no continuity), and testing its manual operation with a slight vacuum/pressure.
C6The differential pressure switch does not close.The air pressure switch does not reach switching due to lack of depression (blocked tube/leak) or due to an internal fault of the pressure switch itself; it is checked by measuring continuity during start-up with the fan running and inspecting/probing hoses and pressure inlets.
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