24
No Cycling or appliance power
or thermostat call for heat
since appliance failure has
occured.
Line voltage power can
cause product damage,
severe injury or death.
Only a trained experienced
service technician should
perform this trouble-
shooting.
1. Check the system thermo-
stat to make sure it is call-
ing for heat. (Do not cycle
the thermostat on and off
at this time.)
2. Remove the appliance
burner compartment door.
Do not interrupt power to
the SV9540; SV9640 by
opening any electrically
interlocked panels.
3. Observe the LED indicator
on the SV9540; SV9640;
check and repair system as
noted in the chart to the
right.
Table 6 - Tubular Propeller Trouble Shooting with LED Indicator Assistance
1. Line voltage input power at L1
and L2 connector.
2. Low voltage (24V) power at 24
VAC and COM.
3. System wiring harness is in good
condition and securely connected
at both ends.
Not Applicable
1. Ignition system control switch
must be in the ON position.
2. Airflow proving switch operation,
tubing and wiring.
3. Obstructions or restrictions in
appliance air intake or exhaust
flue system that prevent proper
combustion airflow.
1. Open manual reset or auto reset
burner rollout switch.
2. Open high temperature or
auxiliary limit switch.
3. Replace venter relay.
1. Gas supply off or at too low
pressure to operate appliance.
2. Damaged or broken HSI element.
3. Line voltage HOT lead wire not
connected to L1 terminal (check
polarity)
4. Appliance not properly earth
grounded.
5. Flame sense rod contaminated or
in incorrect location.
6. Be sure pilot burner lead wires are
in good condition and properly
connected.
No power to system control
Normal operation
This indication shows whenever the
system is powered, unless some
abnormal event has occurred.
Airflow proving switch remains
open longer than 30 seconds after
combustion air blower energized
System goes into 5-minute delay
period, with combustion air blower off.
At the end of the 5-minute delay,
another ignition cycle will begin.
Limit string is open.
System Lockout
After 5-minute delay time, control
system will reset and initiate a new
ignition sequence, if the call for heat
is present.
LED STATUS
INDICATES
CHECK/REPAIR
Off
Bright – Dim
3 Flashes
4 Flashes
6 Flashes
LIMITED WARRANTY
Power Vented Tubular Propeller Unit Heaters
1. The "Manufacturer" warrants to the original owner at original
installation site that the above model Gas-Fired Heater ("the
Product") will be free from defects in material or workmanship for
(1) year from the date of shipment from the factory, or one and
one-half (1-1/2) years from the date of manufacture, whichever
occurs first. The Manufacturer further warrants that the complete
heat exchanger, and burners be free from defects in material or
workmanship for a period of ten (10) years from the date of
manufacture. If upon examination by the Manufacturer the Product
is shown to have a defect in material or workmanship during the
warranty period, the manufacturer will repair or replace, at its
option, that part of the Product which is shown to be defective.
2. This limited warranty does not apply:
a. if the product has been subjected to misuse or neglect, has
been accidentally or intentionally damaged, has not been
installed, maintained, or operated in accordance with furnished
written instructions, or has been altered or modified in any
way by any unauthorized person.
b. to any expenses, including labor or material, incurred during
removal or reinstallation of the Product
c. to any damage due to corrosion by chemicals, including
halogenated hydrocarbons, precipitated in the air
d. to any workmanship of the installer of the Product
3. This limited warranty is conditional upon:
a. advising the installing contractor, who in turn notify the
distributor or manufacturer
b. shipment to the Manufacturer of that part of the Product thought
to be defective. Goods can only be returned with prior written
approval of the Manufacturer. All returns must be freight
prepaid.
c. determination in the reasonable opinion of the Manufacturer
that there exists a defect in material or workmanship
4. Repair or replacement of any part under this Limited Warranty
shall not extend the duration of the warranty with respect to such
repaired or replaced part beyond the stated warranty period.
5
. THIS LIMITED WARRANTY IS IN LIEU OF ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED, AND ALL SUCH OTHER
WARRANTIES, INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND
EXCLUDED FROM THIS LIMITED WARRANTY. IN NO EVENT
SHALL THE MANUFACTURER BE LIABLE IN ANY WAY FOR
ANY CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES
OF ANY NATURE WHATSOEVER, OR FOR ANY AMOUNTS
IN EXCESS OF THE SELLING PRICE OF THE PRODUCT OR
ANY PARTS THEREOF FOUND TO BE DEFECTIVE. THIS
LIMITED WARRANTY GIVES THE ORIGINAL OWNER OF THE
PRODUCT SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE
OTHER RIGHTS WHICH MAY VARY BY JURISDICTION.
In the interest of product improvement, we reserve the right to make changes without notice.
