Ascent Combi and Ascent Plus Combi Gas – January 2024 5
HOMEOWNER/USER NOTE:
EMERGENCY SHUT DOWN INSTRUCTIONS:
Turn power off to boiler by switching the “Burner Emergency Switch” (typically located at the top of basement stairway
or at boiler room entrance) to the OFF position. Shut off gas supply valve.
NOTICE
Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the
boiler and to replace any part of the control system which has been under water and replace any other parts that may pose
a safety or health risk.
IN CASE OF NO HEAT
In case of no heat coming from the boiler, perform the following actions or call a qualified service agency for help.
Look at the LEDs on the burner control. If the screen shows “LOCKOUT” or the red LED is on (constantly on
legacy controls), then press and hold in the reset button for one second. The burner will then try to relight. If the
burner relights successfully, then no further action is needed.
If the burner goes into lock out again, contact a qualified service agency for help.
ANNUAL MAINTENANCE
The Ascent Combi and Ascent Plus Combi boilers require an annual tune-up by a qualified service agency to maintain
top efficiency and peak performance and to verify proper performance of all safety devices.
PERIODIC MAINTENANCE
The Ascent Combi and Ascent Plus Combi boilers require minimal attention from the user.
- Daily inspect the space around the burner/boiler to verify the area is clean and free of any flammable or combustible
materials.
- Once a month it is recommended that the owner/user inspect the boiler and to watch the operation of the boiler. The
owner/user should:
Inspect flue connections.
o Look for evidence of deterioration from corrosion or other sources. Watch the flue and vent pipes during a
startup of the boiler and look and smell for evidence of escaping flue products.
o For a chimney installation, particularly examine the joint between the boiler outlet and the flue pipe. Also
examine the joint between the flue pipe and the base of the chimney.
Inspect for evidence of water, such as leakage from the safety pressure relief valve.
Watch the Ascent Hydrostat control during one heating cycle of the boiler.
Verify the pressure gauge on the boiler is reading between 5 psi and 30 psi.
Verify the temperature gauge on the boiler reads no more than 220F at the end of a heating call.
If any of the above items seem unusual or out of the ordinary, then immediately call your qualified service agency.
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