TROUBLESHOOTING (cont’d)

ERROR CODE CORRECTIVE PROCEDURES

Condition

Mode Switch in SERVICE position. Valve Open Limit Switch problem.

Valve Closed Limit Switch problem.

Corrective Action

Return Mode Switch to NORMAL position.

With the flush valve fully open, check the “VALVE OPEN” status light. If the light is off, then the Valve Open Limit Switch is out of alignment or defective, or related wiring is defective.

With flush valve in the fully closed position check the “VALVE CLOSED” status light. If the light is off, then the Valve Closed Limit Switch is out of alignment or defective, or related wiring is defective.

TOILET OPERATION

SYMPTOM 1. Toilet will not flush and water will not enter toilet bowl.

Condition

Corrective Action

+5V status light is off:

+5V status light is on:

•Check toilet fuse or circuit breaker at DC distribution panel.

•Check for loose or defective wiring between control module and DC distribution panel.

•Check for reverse polarity of input power to control module.

•If all of above check OK, replace control module.

•Input power must be 10 volts or higher.

•Check control module for error codes.

•Put Mode Switch in SERVICE position. If flush valve opens, go to next step. If the flush valve does not open, go to Symptom 2.

•Put the Mode Switch in NORMAL position and push handle or switch to "Flush" while observing “FLUSH” status light. The “FLUSH” status light must come on when the switch is pushed and go off when the switch is released. If the “FLUSH” status light did not follow com- mands of switch, then flush switch or related wiring is defective.

SYMPTOM 2. Flush valve will not open when the Mode Switch is in the SERVICE position or when the flush handle or switch is pushed to "Flush" while in the NORMAL position.

Procedure

Check the voltage output to the flush valve motor at pins 9 and 10 on the control module as follows:

Corrective Action

•Pull the control module out as far as the control cables will allow.

•Disconnect either the purple or yellow wire from the Open Limit Switch.

•With DC voltmeter test leads across pins 9 and 10, flip the Mode Switch between the NORMAL and SERVICE positions. If voltage is present for about two seconds in the SERVICE position, the flush valve motor or related wiring is defective. If voltage is not present, replace the control module.

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Dometic 3300, 3400 owner manual Troubleshooting cont’d
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3400, 3300 specifications

The Dometic 3300 and 3400 series represent a significant advancement in mobile cooling technology, specifically designed for recreational vehicles, campers, and outdoor enthusiasts. These roof-mounted air conditioning units offer efficient cooling solutions that prioritize comfort and convenience while maintaining a lightweight and compact design.

One of the standout features of both the Dometic 3300 and 3400 is their high cooling capacity, capable of efficiently cooling spaces up to 30 feet long. This powerful cooling capability ensures that users can enjoy a comfortable indoor climate, even during the hottest days of summer. The units also come equipped with a superior airflow system, allowing for even distribution of cool air throughout the living space, enhancing overall comfort.

A key technology highlight of the Dometic 3300 and 3400 is the use of a variable speed compressor. This innovative feature adjusts the cooling output based on the ambient temperature, leading to improved energy efficiency and reduced noise levels compared to conventional fixed-speed units. The result is a quieter operation that allows users to enjoy a peaceful environment while staying cool.

The design of the Dometic 3300 and 3400 series also emphasizes user-friendly operation. With an intuitive digital thermostat, users can easily set their desired temperature and make adjustments as needed. The units also feature a remote control option, providing added convenience from anywhere in the RV or camper.

Durability is another cornerstone of the Dometic 3300 and 3400. Built with robust materials that withstand the rigors of outdoor use, these units are designed to endure varying weather conditions. Moreover, the sleek, low-profile design not only enhances the aesthetic of the vehicle but also minimizes wind resistance, contributing to better fuel efficiency during travel.

In addition to their cooling capabilities, both models include an integrated heat pump option, allowing for climate control throughout the year. This versatility makes the Dometic 3300 and 3400 ideal for users who camp in diverse conditions, from sweltering summer heat to chilly fall evenings.

Overall, the Dometic 3300 and 3400 series air conditioning units combine advanced technology with practical features, creating an efficient and effective solution for maintaining a comfortable environment in mobile living spaces. Their blend of performance, durability, and user-friendly operation establishes them as leaders in the market for RV air conditioning solutions.
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