Error Codes & Solutions for SpaNet Spa Control Systems. IMPORTANT NOTE: BEFORE ATTEMPTING ANY TROUBLESHOOTING ALWAYS ENSURE MAINS POWER IS ISOLATED AND TURNED OFF.

ER-2 HEATER PLUG 
Problem: Heater sensor cable fault. 
Cause: Heater sensor lead is not correctly connected to spa control or damaged
Solutions:

  • 1. Check heater sensor lead is firmly plugged into the spa control socket labelled “Heater”
  • 2. Unplug and re-plug heater sensor lead to re-establish connection to spa control
  • 3. Check for damage to sensor lead including bent or broken pins on plug

ER-3 WATER PRIME
Problem: Water prime failed – insufficient water level detected in heater tube. 
Cause: Airlock in pipe work, low water level, dirty filter cartridges
Solutions:

  • 1. Press Pump A button to retry water prime
  • 2. Check spa water level (refill if necessary)
  • 3. Remove filter cartridges and press Pump A button to retry water prime
  • 4. Bleed airlock from pipe work by slightly loosening mac unions on front of filtration pump
  • 5. Remove filter cartridges and flush water down pipe work with a garden hose

ER-4 THERMAL TRIP
Problem: Heater thermal trip activated - Heater has been active and had insufficient water flow over the element. Low or no water flow has caused the element temperature to exceed 47C and the spa control has shut down operation to prevent any damage to the heater unit. 
Cause: Low water level, airlock in pipe work, closed shut-off valves, dirty filter cartridges, filtration
pump operation intermittent or not running at all
Solutions:

  • 1. Turn mains power OFF and wait approximately 20-30 minutes for element to cool and
  • thermal cut-out device to reset. Then turn power back ON
  • 2. Check spa water level (refill if necessary)
  • 3. Remove filters and clean by soaking in hot water and filter degreasing solution
  • 4. Check under spa cabinet to ensure all shut-off valves are in the OPEN position
  • 5. Bleed airlock from pipe work by slightly loosening mac unions on front of filtration pump or by removing filters and flushing pipe work with water from a garden hose.


ER-5 POOL TOO HOT
Problem: Pool over temperature – temperature sensor reading = > 45C. 
Cause: High ambient temperatures (especially in summer months) have caused water temperature to rise above set temp point, Excessive filtration time, Jet pumps have been operating for extended periods with the spa cover still on.
Solutions:

  • 1. Turn mains power OFF, remove spa cover, allow spa to cool then turn power back ON
  • 2. Check daily filtration time (refer filtration section) and reduce daily filtration time if required
  • 3. Check spa cover is not resting on topside panel buttons causing jet pumps to start when
  • cover is on. Use key lock function to lock topside panel buttons when spa not in use.

ER-6 HEATER SENSOR
Problem: Heater temperature sensor unable to communicate with spa control. 
Cause: Heater sensor lead is not correctly connected to spa control or has damaged / bent pins
Solutions:

  • 1. Check heater sensor lead is firmly plugged into the spa control socket labelled “Heater”
  • 2. Unplug and re-plug heater sensor lead to re-establish connection to spa control
  • 3. Check for damage to sensor lead including bent or broken pins on plug

ER-7 POOL SENSOR (PLUG / TIMEOUT / COMMS)
Problem: In-Pool temperature sensor unable to communicate with spa control.
Cause: In-Pool temperature sensor lead is not correctly connected to spa control or electronic fault
Solutions:

  • 1. Check sensor lead is firmly plugged into spa control socket labelled “In-Pool Sensor”
  • 2. Unplug and re-plug in-pool sensor lead to re-establish connection to spa control
  • 3. Check for damage to sensor lead including bent or broken pins on plug
  • 4. If problem persists, completely disconnect in-pool sensor lead from spa control. The spa control will continue to operate excepting the temperature will be measured from the in-heater sensor not the in-pool sensor.

ER-8 CONTROLLER
Problem: Internal controller fault detected
Cause: Power surge, low or high voltage, water on spa control terminal block, relay problem
Solutions:

  • 1. Turn mains power OFF and back ON again to see if spa control recovers from ER8 fault
  • 2. Inspect under spa cabinet for evidence of water leaking onto spa control. If water present, turn mains power OFF and isolate, then resolve leak, dry up excess water, and allow spa control to dry out before restoring power.

Note on Error Codes: If an error code persists after attempting the above listed troubleshooting instructions, send controller and touchpad to us, or call a "Type A" licensed electrician with experience in the controllers. "Pool Guys" or "Spa Technicians" with no license, or just a "Type D" Disconnect/Reconnect License are not qualified to carry out work such as this.

Send controller & touchpad to:
Heater & Spa Parts
1/10 Industry Blvd
Carrum Downs, Vic 3201