This post will detail the definition of an ERR2 (Error 2), as well as the common and potential causes of the solution. It will also delve into simple troubleshooting methods that can be used to diagnose and treat the issue.
What is ERR2?
ERR2 is displayed when the flow meter returns a value of zero after a MIST cycle.
Most Common Cause:
- Flow meter clog or failure
Other Potential Causes:
- Pump failure or clogged intake filter
- Flow rate of the nozzle circuit is too low to register. (Nozzle count may be less than 20)
- Frozen fluid in nozzle circuit
- Agitation valve not opening
- Auto Drain Valve (inside drum) is unattached
- Failed motor or controller
Troubleshooting Steps:
1. Confirm the nozzle count is 20 or more.
- If not, the flow rate is too low for the flow meter to reliably read. Unplug the flow meter from the back of the controller and cycle the power.
2. Run a remote or manual mist.
- If the nozzles are misting, the flow meter is clogged or has failed.
3. Remove and clean the flow meter then retest by running a mist to completion.
- If the result is ERR2, replace the flow meter.
- If you do not have a replacement flow meter on hand, you can enable the system to run without it by unplugging it from the back of the controller and cycling the power.
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If the nozzles are not misting, the problem is not with the flow meter.