Manitowoc E16 Error Code

What does Manitowoc E16 mean?

E16 applies to remote condenser models (CVD/remote condensing unit configurations). The fault triggers when the liquid line temperature falls below 40°F or exceeds 140°F for an extended period during the freeze cycle. This indicates the remote condensing unit is not operating correctly — either a fan or refrigerant issue at the remote unit, or a communications problem between the indoor and outdoor sections.

Symptoms

• Machine shuts down with E16 in the event log.
• Liquid line temperature is outside the 40–140°F allowable range.
• Remote condensing unit fan(s) are not running or are running abnormally.
• Ice production degrades before shutdown on remote condensing configurations.

Common causes

• Remote condenser fan motor failure reducing heat rejection.
• Low ambient temperature at the remote condenser location causing liquid subcooling below 40°F.
• Low refrigerant charge dropping liquid line temperature below the minimum.
• Liquid line solenoid valve not opening properly on remote condenser models.
• Wiring or communication fault between the indoor section and the remote condensing unit.

Ask the AskWhiz AI about Manitowoc E16

AskWhiz

online

Hi — I'm the Commercial Kitchen demo. Ask me anything in this domain.

What causes Manitowoc E16?Step-by-step fix for Manitowoc E16?Is Manitowoc E16 safe to ignore?

MessageHelp me troubleshoot Manitowoc E16

Diagnostic steps

1. Inspect the remote condenser unit

   Visually confirm the remote condenser fan(s) are running when the compressor is energized. Check for obstructions, ice accumulation in winter, or motor failures at the remote unit.

2. Measure liquid line temperature

   Clamp a thermometer on the liquid line between the remote condenser and the indoor ice machine section. Readings below 40°F or above 140°F confirm the E16 trigger condition.

3. Check the liquid line solenoid valve

   Confirm the liquid line solenoid opens during the freeze cycle. A stuck-closed solenoid prevents refrigerant from reaching the indoor TXV, causing abnormal temperature readings.

4. Verify wiring between sections

   Inspect the inter-section control wiring for damage, loose connections, or corrosion. Remote unit communication failures prevent correct fan and solenoid control.

5. Check refrigerant charge with manifold gauges

   Connect gauges and compare pressures to the published charging chart for the remote condenser configuration and current ambient temperature at the remote unit.

When to call a professional

Remote condenser refrigeration systems involve long line sets and specialized charging procedures. All refrigerant service, fan motor replacement at height, and remote unit diagnostics require a licensed EPA 608-certified technician familiar with Manitowoc CVD configurations.