Electrodes
If ignition fails we check spark and Bosch electrodes before the valve.
Boiler repair at home at TTZ-2
Home visitDiagnostics with repairWarranty on labor
Boiler repair at TTZ-2: no ignition or falling pressure — the technician checks electrodes, the condensate trap and the circulation pump.
On Bosch and Navien in the second quarter the trap often clogs: the boiler faults while the pump still runs.
Boilers in niches of the eastern Yashnabad housing belt — neighbouring-quarter block, not the plant line.
from 200,000 sum
Free diagnosticsExact price after diagnostics. We agree on the estimate and parts needed before work starts.
Arrival in 1-2 hours
Warranty included
Home repair
10+ years experience
TTZ-2
Service Area
Visit time
Confirmed by phone
How to arrange a visit
- Access to the gas cock, coaxial flue and the cold gauge.
- Bosch, Buderus or Navien model and the display code.
- Symptom: no DHW, no ignition or a short-cycling burner.
How the visit works
Trap
On a lockout with a live pump we clear the Navien condensate trap.
Pump
When pressure falls we test circulation and the expansion vessel.
Exchanger & gas
Issues We Fix
Heating and DHW
- Radiators stay cold
- No hot water
- Won't hold temperature
Ignition and gas
- Won't start / no ignition
- Soot / gas smell
Pressure and leaks
- Pressure dropping
- Heat exchanger leaking
Electronics
- Display error
- Noisy operation
- Short cycling
Brands We Service
- Baxi
- Vaillant
- Ariston
- Bosch
- Ferroli
- Navien
- Buderus
- Protherm
- Immergas
- Kiturami
- Rinnai
- Fondital
Topic 1 / 3
Gas boiler heat exchanger cleaning
If radiators stay lukewarm, the boiler is slow to heat, or it short-cycles — scale in the heat exchanger is a common cause. It cuts heat transfer, raises gas consumption, and can overheat the unit.
On diagnostics the technician flushes the primary and secondary exchangers, checks temperature sensors and the return filter. We agree the scope and price before cleaning starts.
Frequently Asked Questions
Boiler not heating or showing an error?
Tell us the model and fault code — we'll advise on a home visit and prepare for diagnostics.
Find in your district
Boiler Repair at Home in Tashkent — in your district
Districts and neighbourhoods of Tashkent. Pick yours — the page with prices, cases and master opens instantly.
55 districts and areas in total