IPSO Washer-Extractor Error Code Err: Coin Input Error

What does IPSO error code Err mean?

This code only applies to machines wired with a coin input, such as one in an on-premise or vended laundry room of an institution. Industrial laundries without a coin drop never see it. Each coin should send the control a pulse of the right shape. If the control sees a pulse it cannot accept, or the sensor does not respond at all, the control refuses the payment and shows Err, so no cycle starts. The trouble is in the payment path and not in the wash. A bent coin, debris in the slide, a dirty sensor or damaged wiring can be behind it. A vended room draws constant use, so slides collect lint and sticky residue that a plant machine never sees. If Err appears on a machine that has no coin drop at all, the page does not match and a technician should check the model.

Affected models and control systems

CHM495R washer-extractors, 20 to 100 lb, fitted with a coin input. Other controller generations use different codes.

Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.

What you may notice

• Err on the display after a coin goes in
• Coins rejected or returned
• Cycle will not start after payment
• No reaction from the coin drop

Possible causes

Listed in IPSO's documentation

• A bent coin or debris lodged in the slide
• Dirt on the coin sensor
• The wire run between the coin drop and the control
• The control's coin input

Other likely causes — what usually sits behind error code Err on this control. A technician confirms which one it is before any part is replaced.

• Sticky residue in the slide that slows coins
• A sensor lens covered in lint
• A coin drop plug loosened by door slams
• A coin input on the control that no longer registers pulses

Safe checks before calling for service

How a technician diagnoses error code Err

1. Confirm that the machine is configured with a coin input.
2. Clean the slide and sensor and test with known-good coins.
3. Check the coin drop connector and wires back to the control, with power locked out.
4. Meter the coin drop output while a coin passes.
5. Test the control's coin input, then replace the drop or the control as needed.

Technical reference

Document

Washer-Extractor Programming CHM495R_SVG, Part No. F8208501ENR10, March 2017, Error Codes (pp. 36-37)

Edition

Part No. F8208501ENR10, March 2017

Models / control

CHM495R family washer-extractor front-end control (20-100 lb)

Section

Error Codes table, pp. 36-37 (E Pr only on Design 1 models; Ed01-Ed11 on Design 2 and 3 models)

Checked

October 2026

We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.