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© 2011 Aqua-Hot
®
AHE-100-02S Hydronic Heating System Service Manual—Rev. B
S
ECTION
5: A
QUA
-H
OT
C
OMPONENTS
Electrical - AC
Electric Heating Element:
The electric heating element uses AC power as an alternate
power source for heating the Aqua-Hot’s boiler tank.
Troubleshoot the electric heating element if the following
condition has occurred:
There is a lack of hot domestic water and interior heat
when the electric element is selected as the heating
source.
Troubleshooting:
NOTE:
For continuous domestic hot water to be present, the
diesel-burner must be selected also as a heating
source.
1. Verify that the motor home is either plugged into shore
power or that the generator is running to provide AC
power.
2. Verify that the “Electric” Switch is on, inside the motor
home.
If the Electric Switch\ A.C Breaker is on, and operating
properly:
A.
Check the temperature of the Aqua-Hot’s boiler
tank.
If the boiler tank temperature is below 185°F, trou-
bleshoot the control thermostat for the electric ele-
ment.
If the boiler tank is above 210°F, the Aqua-Hot is at
operating temperature and requires no heat.
3
. Verify that the electric heating element is receiving ade-
quate AC power by completing the following:
A.
Remove the AC access cover.
B. Using an AC voltmeter, verify that 110 volts of AC
power are present.
4. If Adequate AC power is present at the Aqua-Hot Check
The following:
A.
Using a digital Clamp-On amp-meter, verify that
11.2 to 13 amps are present the element’s wires. If
the Electric Element wires show a 11.2 - 13 amp
draw the electric element is working properly
5.
Check the electric heating element for functionality by
completing the following:
A.
Disconnect all power supplies.
B.
Remove all wires from the electric heating element.
C.
Using an ohmmeter, check the electric heating ele-
ment for the proper ohms reading (8-9 ohms). If the
proper ohms reading is not read, follow the instruc-
tions in this manual for replacing the electric heat-
ing element.
Replacement Procedure:
F
AILURE
TO
DISCONNECT
ALL
POWER
SUPPLIES
AND
/
OR
TO
ALLOW
THE
HEATER
TO
COOL
BEFORE
SERVICING
COULD
CAUSE
SERIOUS
DAMAGE
OR
PERSONAL
INJURY
.
1.
Ensure that the Aqua-Hot has been completely shut
down and that all power sources have been disconnect-
ed. Also, because this replacement procedure will in-
volve the boiler tank and the potential for hot coolant, be
sure the heater has adequately cooled.
Note:
This Model of Aqua Hot may not have a switch for
the electric element. If no switch is found verify the A.C.
Breaker for the Aqua Hot is in the On Position. If there is a
12 VDC switch activating a 120 VAC heating element there
is a relay that is triggered by the 12 VDC switch, which then
will activate and allow A.C. Power to the Aqua Hot.
NOTE: Follow the Troubleshooting guide for both the con-
trol and overheat thermostats before replacing the Electric
Element.
Summary of Contents for AHE-100-02S
Page 1: ...SERVICE MANUAL 2011 Aqua Hot Heating Systems Inc AHE 100 02S ...
Page 2: ... Page 2 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
Page 104: ... Page 104 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
Page 105: ... Page 105 2011 Aqua Hot AHE 100 02S Hydronic Heating System Service Manual Rev B ...
