Sitkhobs Khazi
Choose the service you need
We work on both heating boilers and gas-fired instant water heaters — repair and installation.
Boiler Repair
Error codes, pressure issues, no heating or hot water, leaks, pump, and electronics.
Repair details →
Boiler Installation
Removing the old boiler, correct connection, filling the system, start-up, setting parameters, and testing.
Installation details →
Water Heater Repair
Ignition, weak heating, unstable flame, water assembly, sensors and heat exchanger.
Water heater service details →
Water Heater Installation
Wall mounting or replacement, safe connections, tightness check, and start-up.
Installation details →Accurate diagnostics before parts are replaced
We work on standard, double-circuit and condensing wall-mounted gas boilers. An error code is only a starting clue — to find the cause we check the power supply, sensors, water circulation, the ignition sequence and the boiler's operating conditions.
Ignition and flame problems
No spark, gas won't ignite, flame goes out, or the boiler locks out frequently.
No heating or hot water
Three-way valve, flow sensor, plate heat exchanger, or circulation.
Pressure and water leaks
Expansion tank, safety valve, automatic air vent, or an internal leak.
Pump and circulation
Stuck pump, capacitor, relay, air in the system, or contamination.
Fan and exhaust
Fan, pressure switch, venturi, condensate, or flue restriction.
Electronic control
Board power supply, relays, connectors, sensors, and control signals.
ARISTONBOSCHBAYMAKThis is an independent repair service. Brand names refer to the equipment we work on and do not imply authorized representation by the manufacturer.
Correct connection, start-up and parameters
A new boiler must match the heating system and be started up correctly. We install new or replacement wall-mounted boilers, check the water and gas connections, fill and bleed the system, set the operating parameters, and test heating and hot water.
- Removing the old wall-mounted boiler
- Mounting the new boiler and hydraulic connection
- Flue and condensate setup where needed
- Filling the system, bleeding air, and checking pressure
- Start-up, temperature setting, and full testing
- Explaining the controls clearly
Gas Water Heater Repair and Installation
We work on compact wall-mounted gas water heaters that heat water on demand as it's used — commonly known as gas water heaters. Their hydraulic and combustion system differs from a heating boiler and requires separate diagnostics.
Water heater won't ignite
Batteries or power supply, microswitch, flow sensor, ignition module, electrodes, or gas valve.
Water doesn't heat enough
Scale in the heat exchanger, weak water flow, a dirty burner, or incorrect adjustment.
Flame is unstable or goes out
Draft, overheating, flame control, gas pressure, or contaminated heat exchanger plates.
Unit is leaking water
Water assembly, membrane housing, connections, or a damaged heat exchanger.
Replacement and installation
Wall mounting, water and gas connection, flue, tightness check, and a safe start-up.
Common boiler and gas water heater problems
If the same error keeps repeating, don't keep resetting the gas appliance. A technician needs to find the cause and safely inspect the unit.
Boiler won't turn on or shows an error code
No hot water, or the temperature fluctuates
Heating pressure drops or water is leaking
Radiators don't heat up, or the boiler is noisy
Gas water heater won't ignite
Water heater heats weakly or shuts off
From the first call to a working unit
If possible, send us the brand, model, and a photo of the error or unit ahead of time.
Call or WhatsApp
Tell us whether you need a repair, a replacement, or a new installation.
On-site diagnostics
We check the unit, the connections, and the operating conditions.
Price agreement
You'll know the repair or installation price before work begins.
Repair, test, warranty
We test that everything works and clearly explain correct use.
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