Справочник Пользователя для Roberts Gorden UHA[X][S] 125

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12.1 Servicing Instructions
After start-up, the heater will require maintenance to 
be carried out annually. If the heater is used in a 
dirty or dusty area, more frequent maintenance may 
be required.

IMPORTANT: After any maintenance or repair work, 
always test fire the heater in accordance with the 
start-up instructions on Page 29, Section 10 through 
Page 32, Section 10.3.1 to ensure all safety systems 
are in working order before leaving the heater to 
operate. Minor faults may be traced by using the 
troubleshooting charts on Page 38, Section 13 
through Page 41, Section 13.5.

IMPORTANT: Check all gas pipes and pipe joints to 
ensure there are no cracks or gas leaks. Any cracks 
in the pipes or pipe joints must be repaired.

IMPORTANT: Inspect all suspended components 
and hardware. Ensure that they are in good 
condition, properly tightened, and corrosion free

1. Open the door and remove the burner 

 

compartment cover. See Page 43, Section 
14.2.

2. Clean any deposits from the main burner which 

may have formed in the injectors or venturi of 
the burner. See Page 43, Section 14.2.

 

 

3. Remove the ignition electrode and flame probe. 

Check condition of ignition electrode and flame 
probe. Clean off any deposits which may have 
been formed, check condition of ceramic 

 

insulators. Replace as required.

The main fan bearings are permanently sealed and 
do not need lubrication. Before cleaning, turn off gas 
and electrical supply. Remove the fan and use a 
small brush or duster to clean the fan blades from 
each side. Replace fan when done.

12.4 Heat Exchanger Maintenance
The heat exchanger will remain clean unless a 
problem has developed with combustion. Inspect the 
heat exchanger. Look for signs of overheating at the 
front tubes which may indicate burner over firing or 
persistently low air flows.

12.5 Gas Valve Maintenance
No regular maintenance is required on this device. 
To change gas control valves, See Page 42, Section 
14.1 .
Do not repair or disassemble gas valve.
Replace faulty gas valves with replacement parts 
sold and supplied by Roberts-Gordon.

12.6 Flue Blower
The flue blower should not require maintenance. 
However, if the air pressure switch is causing burner 
lockout, then remove the flue blower from the vent 
box by unscrewing the three screws at the mounting 
plate. Remove the four screws attaching the 
mounting plate to the fan inlet (See Page 46, 
Section 14.6). Ensure that the fan is free to run and 
that the fan wheel is clean.