NEED TECH SUPPORT HELP?

1-870-892-8343

Hours: 6am-4pm CST Mon - Fri

Contact tech support

SYMPTOM

 

Water around base of unit

 

 

 

 

 

 

 

Noisy Operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Insufficient Air Flow

 

 

 

 

 

 

 

 

To much air flow

   (All systems are tested for

     proper CFM in factory.)

 

 

 

 

Fan runs continuously Compressor operative.

 

 

 

 

 

Fan operates, compressor inoperative

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit completely inoperative

 

 

 

 

 

 

Reversing valve will not switch

(All Hydro-Temp systems energize the RV for Cooling)

 

 

Operating pressures too high and / or high pressure limit tripping.

 

 

 

Operating pressures too low and / or low pressure limit tripping.

 

 

 

 

 

Freeze protection switch activating or controller shows system locked out on Freeze.

 

 

 

 

 

Controller shows system locked out on limit trips.

 

 

DDC systems - RSpro t-stat shows a bell on stat.

POSSIBLE CAUSES

 

1.  Water leak on plumbing

2. Condensate from water coil or accumulator

3.  Condensate pan not draining.

 

4.  Air coil freezing up in A/C mode

 

 

1.  Normal after recharging unit.

 

 

2.  Defective fan motor.

3.  Defective compressor mounts

4.  Defective compressor

5.  Refrigerant line vibrating

6.  Loose blower wheel

7.  Foreign material in blower housing or defective housing.

8.  Duct leaking or loose duct.

9.  Excessive water pressure on well.

10.  Improper refrigerant charge.

 

 

 

 

1.  Leaks in duct or improper static pressure

2.  Dampers and / or registers closed

3.  Obstruction in system or duct

4.  Clogged or very dirty filter

5.  Dirty air coil.

6.  Motor speed set too low

 

 

1.  Filters not in place

2.  Registers or grills not installed.

3.  Insufficient static pressure.

 

4.  Motor speed set too high.

 

1.  T-stat fan selector turned to "ON" position.

2.  Defective thermostat or wiring.

3.  DDC system - Fan set in code to run continuously.

4.  Defective Fan Relay

 

1.  T-stat not set properly

2.  Bad t-stat wiring or bad t-stat

3.  Refrigerant limit switch activating (low or high)

4.  Compressor internal protection tripped (Thermal or voltage)

5.  Freeze protection activated

6.  Defective compressor capacitor

7.  Defector compressor contactor

8.  Defector time delay

9.  DDC system - Other system fault has unit protected

 

10.  Defective compressor

 

1.  No power to system

2.  Defective control wiring or t-stat

3.  Defective transformer.

4.  DDC system - Master switch off

5.  DDC system - Sensor missing

 

 

1.  No voltage to solenoid

 

2.  Bad coil / solenoid

3.  Stuck reversing valve

 

1.  Lack of water flow or loop temp too high (cooling)

2.  Lack of air flow (heating)

3.  Bad high pressure limit

4.  Unit over charged

5.  Bad expansion valve

 

1.  Lack of water flow or loop temp too low (heating)

2.  lack of air flow (cooling)

3.  Bad low pressure limit.

4.  Unit refrigerant charge low

5.  Bad expansion valve.

 

1.  Lack of water flow

 

2.  Water / loop too cold

 

3.  Freeze stat set too high

4.  Bad freeze stat or freeze sensor

 

1.  System has exceeded the number of limit trips within a given window.

 

1.  The bell on the stat indicates a system fault.  Press the info button to view the fault code.

CORRECTIVE ACTION

 

1.  Find and repair water leak.

2.  Insulate items.

 

3.  Check for algae, blow out restriction in condensate pipe

4.  Check for dirty air filter or dirty air coil, check refrigerant charge.

 

1.  Initial operation after recharging may be noisy as refrigerant separates from oil.

2.  Repair or replace motor.

3.  Replace compressor mounts.

4.  Replace compressor

5.  Reposition and secure lines.

6.  Realign and tighten / replace

7.  Clean housing or replace

 

8.  Repair and secure duct.

9.  Install pressure reducer on well water supply line and set to 25 psi.

10.  Check refrigerant charge, if grossly over charged or under changed compressor will become noisy and WILL cause damage to compressor.

 

1. Repair duct, check for leaks.

 

2.  Open registers or check wiring to dampers.

3.  Remove obstruction

4.  Clean or replace air filter

5.  Clean air coil.

6.  Make speed adjustment

 

1.  Installs filters

2.  Install registers or grills

3.  Check duct static pressure calculation and correct system.

4.  Make speed adjustment.

 

 

1.  Switch t-stat selector to Auto

 

2.  check wiring or replace t-stat

3.  Check program settings via logging into front-end or Bacview.

4.  Replace fan relay.

 

1.  Read t-stat instructions.

2.  Check wiring, replaced t-stat.

3.  Repair condition causing low or high refrigerant pressures.

4.  Repair condition causing extreme operating temperature.

5.  Increase water flow / clean strainer.

6.  Replace compressor capacitor.

7.  Replace compressor contactor

8.  Replace timer.

9.  Check sequence of operation for other safeties.  (VFD fault, smoke, voltage protector, condensate float, etc)

10.  Replace compressor

 

1.  check electrical supply.

2.  check t-stat wiring  / replace t-stat

3.  check secondary voltage / replace

4.  Check master Switch setting

5.  Check all sensor's values if any are reading incorrectly repair and try again.

 

1.  Check controller and wiring for problems

2.  Replace RV solenoid.

3.  Replace revering valve

 

1.  Check ground loop or well water flow, if loop is too hot check loop installation.

2.  Check duct, grills, and air filter.

3.  Replace limit switch

4.  Adjust charge.

5.  Adjust expansion or replace.

 

1.  Check ground loop or well water flow.  if loop is too cold check loop installation.

2.  Check duct, grills, and air filter.

3.  Replace limit switch.

4.  Adjust charge.

5.  Adjust expansion or replace.

 

1.  check well and discharge lines, check ground loop pump if loop systems

2.  If well water is too cold you can increase flow to compensate.

3.  Freeze stat should be set to 45ºF

4.  Replace freeze stat or sensor.

 

 

1.  Determine which limit is locking the system out and follow the above steps for corrective action.

 

Fault code translation:

0 = OK

1 = Low limit tripped

2= High limit tripped

3 = Freeze lockout detected

5 = Sensor failure

10 = Enable off

11 = Master switch off

15 = Temp Fault detected.

141 = Low limit lockout detected

142 = High limit lockout detected

 

More information about fault codes can be found here