Mounting Gasket; Hot Surface Igniter - Aqua-Hot 400 Series Service Manual

Mounting Gasket:

The Aqua-Hot operates on both AC and DC power. Be sure
to disconnect the 120 Volt-AC power supply from the Aqua-
Hot prior to servicing. Failure to do so could result in seri-
ous personal injury, electrical shock, or even death!
Function:
The Mounting Gasket's create a tight seal between (1) the
Boiler Tank and the Combustion Chamber and (2) The com-
bustion chamber and the Propane-Burner Mounting Plate.
Replacement Indicator:
The Mounting Gasket should be replaced each time the
Propane-Burner is detached from the Aqua-Hot.
Replacement Procedure:
Be sure to shut off the Gas Supply line prior to beginning
this replacement procedure.
1. Follow the "Detaching and Reattaching the Propane-
Burner" procedure located in Section 8 of this manual.
2. Remove the existing Mounting Gasket from the Boiler
Tank's front plate and from the Propane-Burner Mount-
ing Plate. Be sure to clean the old gasket completely off
of both plates
3. Set the replacement Mounting Gasket into place on the
Boiler Tank's front plate.
4. Following the procedure for "Detaching and Reattaching
the Propane-Burner," reattach the Propane-Burner to
the Aqua-Hot.
Be sure to open the shut-off valve for the Gas Supply prior
to starting the Propane-Burner.
Mounting
Gaskets

Hot Surface Igniter

The Aqua-Hot operates o both AC and DC power. Be sure to
disconnect the 120 Volt-AC power supply from the Aqua-Hot
prior to servicing. Failure to do so could result in serious
personal injury, electrical shock, or even death!
Function:
The Hot Surface Igniter ignites the propane gas. It will acti-
vate approximately 10 seconds after the initial start up pro-
cess begins, and will be activated approximately 5 seconds
prior to the propane dual stage gas valve opening, to ensure
it is up to the proper ignition temperature of 1300° F, be-
fore propane enters the burn chamber.
Replacement Indicator:
Replace the Hot Surface Igniter if:
1. It fails to ignite the propane gas.
2. If it is cracked or damaged.
NOTE: The interlock switch will prevent the Propane-Burner
from operating without the access cover intact; therefore,
the switch will need to be manually pressed during this trou-
bleshooting procedure.
Troubleshooting
1. Turn the Propane-Burner switch to the ON position, on
the interior Switch Panel.
2. Approximately 10 seconds, after the Propane Burner's
Blower Fan starts blowing, the Propane-Burner Controller
will activate the Hot Surface Igniter.
© Aqua-Hot® AHE-400-P01 Service Manual Rev.B June 2014
Section #: Title
Propane-Burner Components
Figure 52
p.
55