Справочник Пользователя для State Industries SUF-60-120

61

alert conditions
When the control system declares an Alert condition it will display 

an Alert message on the control system's LCD with a question "?" 

mark. The water heater will continue to operate during an Alert 

condition but the water heater must be serviced by a qualified 

service agent as soon as possible.
resetting control system lock outs
To reset the control system from a lock out condition; turn the 

power supply off for approximately 20 seconds and then back on. 

keep in mind; if the condition that caused the Fault has not been 

corrected, the control system will continue to lock out.
diagnostic checks

Turn off power to the water heater

before performing any service.

Label all wires prior to disconnecting

when performing service. Wiring errors

can cause improper and dangerous

operation.

Verify proper operation after servicing.

Failure to follow these instructions can

result in personal injury or death.

The following section, Fault And Alert messages on page 62, lists 

some of the messages the control system will display on the LCD 

when there are operational problems. This is not a complete list. 

Along with each of the Fault and Alert messages described there 

will be a list of possible causes and things to check and repair.
Only  qualified  service  agents,  as  defined  in  Qualifications  on 

page 6, using appropriate test equipment, should perform any 

service procedures on the water heater. 
note:  if  you  are  not  qualified  and  licensed  or  certified  as 

required by the authority having jurisdiction to perform a given 

task do not attempt to perform any of the diagnostic or service 

procedures described in the following section. 
if you do not understand the instructions in the following section 

do not attempt to perform any procedures.
Call the technical support phone number listed on the back cover 

of  this  manual  for  further  technical  assistance  or  to  locate  a 

qualified service agent in your area.

Service should only be performed by a qualified service

agent using proper test equipment.

Altering the water heater controls and/or wiring in any way

could result in permanent damage to the controls or water

heater and is not covered under the limited warranty.

Any bypass or alteration of the water

heater controls and/or wiring will result

in voiding the appliance warranty.

Altering the water heater controls and/or wiring in any way

could result in altering the ignition sequence allowing gas to

flow to the main burner before the hot surface igniter is at

ignition temperature causing delayed ignition which can

cause a fire or explosion.

•  Colder incoming water temperature lengthening the time 

required to heat water to desired temperature.

•  Hot water piping leaks, open faucets, water heater drain 

valve leaking or open.

•  Sediment or lime scale accumulation may be affecting water 

heater operation. See maintenance on page 64 for sediment 

and lime scale removal procedures.

•  Water heater not firing at full input rating. Check manifold 

gas pressure, see instructions on page 54. Check actual firing 

rate of the water heater, see instructions on page 55.

•  operating Set Point is set too high. See operating Set Point 

•  Upper and/or Lower Probe Offset settings improperly set - 

•  improper water piping - see diagrams beginning on page 71.

•  Sediment or lime scale accumulations can cause rumbling 

and pounding noises during heating cycles. See the 

maintenance section of this manual beginning on page 64 for 

sediment and lime scale removal procedures.

•  Normal operating noise of electrical components; 

Combustion Blower, transformer hum, relay contact closure.

•  Ensure the water heater drain valve is tightly closed.
•  Check cleanout opening for leaks - see Figure 5 on page 10.
•  Check inlet/outlet water connections and system piping.
•  Check the Temperature-Pressure relief Valve.

•  Excessive water temperature.
•  Excessive water pressure.
•  Defective Temperature-Pressure relief Valve.

note: Excessive water pressure is the most common cause of 

Temperature-Pressure  relief  Valve  leakage.  Excessive  water 

system pressure is most often caused by "thermal expansion" 

in a "closed system." See Thermal Expansion and Closed Water 

Systems on page 15. The Temperature-Pressure Relief Valve is 

not intended for the constant relief of thermal expansion.
Temperature-Pressure relief Valve leakage due to pressure build 

up in a closed system that does not have a thermal expansion 

tank installed is not covered under the limited warranty. Thermal 

expansion tanks must be installed on all closed water systems.
replacement parts
replacement  parts  may  be  ordered  from  the  manufacturer, 

authorized service agencies or distributors. When ordering parts 

be sure to have the complete water heater model Number, Serial 

Number and Series Number available. This information can be 

found on the rating label affixed to the water heater.
refer  to  the  parts  list  included  with  the  water  heater  from  the 

factory  for  more  information  or  call  the  parts  department  or 

technical support phone number listed on the back cover of this 

manual for further assistance.

fault conditions
When the control system declares a Fault condition it will display 

a Fault message on the control system's LCD with an exclamation 

"!"  mark. The  control  system  will  lock  out  and  disable  heating 

operation until the condition is corrected. The water heater must 

be serviced by a qualified service agent before operation can be 

restored.