Ultracom₂ 35 Store High
Your boiler is having trouble sensing or delivering hot water because the temperature sensors for the internal storage tank are either faulty or disconnected.
Technical description: F02 / F12
Typical repair cost: £120-250 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like Ultracom₂ 35 Store — no call-out fees, no surprises.
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Parts commonly replaced
- NTC Temperature Sensor
- Sensor Wiring Harness
- Main PCB
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