5Troubleshooting Guide

TROUBLESHOOTING

If the unit does not perform properly when operated as instructed in this owner’s manual, check the following chart once before calling for service.

Symptom

Remedy

No power	• Be sure the power cord is plugged in.
	• If a power failure occurs, unplug the power cord for 30 minutes to allow the unit to
	reset itself.
No picture or sound	• Check if the power is on.
	• Check the outlet connection.
	• Check the antenna or cable connection to the main unit.
	• When the outside antenna is used, check the wire condition and connection.
	• View other TV channels. The problem might be limited to the broadcasting station.
	• Turn off the power and wait for about 1 minute, then turn it on again.
No color	• Check the antenna or cable connection to the main unit.
	• When the outside antenna is used, check the wire condition and connection.
	• View other TV channels. The problem might be limited to the broadcasting station.
	• Adjust “COLOR” in “PICTURE” menu.
Sound OK, picture poor	• Check the antenna or cable connection to the main unit.
	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
	• Adjust “CONTRAST” and “BRIGHT” in “PICTURE” menu.
	• View other TV channels. The problem might be limited to the broadcasting station.
Picture distorted	• When the outside antenna is used, check the wire condition and connection.
	• View other TV channels. The problem might be limited to the broadcasting station.
Weak picture	• Check the antenna or cable connection to the main unit.
	• When the outside antenna is used, check the wire condition and connection.
	• Adjust “CONTRAST” and “BRIGHT” in “PICTURE” menu.
	• View other TV channels. The problem might be limited to the broadcasting station.
Lines or streaks in picture	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
	• View other TV channels. The problem might be limited to the broadcasting station.
Picture blurred	• When the outside antenna is used, check the wire condition and connection.
	• View other TV channels. The problem might be limited to the broadcasting station.
Ghosts in picture	• Check the antenna or cable connection to the main unit.
	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
	• View other TV channels. The problem might be limited to the broadcasting station.
Bars on TV screen	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
Picture rolls vertically	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
	• View other TV channels. The problem might be limited to the broadcasting station.
Different color marks on TV	• Move the unit away from nearby electric appliances. Turn off the power and wait
screen	30 minutes before turning it back on.
	• View other TV channels. The problem might be limited to the broadcasting station.
Poor reception on some	• Check the antenna or cable connection to the main unit.
channels	• When the outside antenna is used, check the wire condition and connection.
	• Electrical interference from nearby appliances may affect picture quality.
	• View other TV channels. The problem might be limited to the broadcasting station.
Picture OK, sound poor	• View other TV channels. The problem might be limited to the broadcasting station.

No reception of digital signals	• Make sure auto channel scan has been completed. (Refer to “Auto Channel Scan”
	on page 11.)
	Auto channel scan must be completed when you set up the unit for the first time
	or move it to a location where previously unavailable channels are broadcast.
	• The selected channel may not be broadcasting.
	• When auto channel scan is interrupted and not completed, some channels will not
	be received. Make sure to complete. (Refer to “Auto Channel Scan” on page 11.)

CR202EM8 specifications

The Emerson CR202EM8 is an advanced temperature and humidity controller designed to meet the needs of various applications, including HVAC systems and refrigeration units. This device showcases Emerson's commitment to innovation and efficiency, providing users with reliable performance and enhanced operational capabilities.

One of the main features of the CR202EM8 is its precise temperature control. With a temperature range of -40°C to 85°C, it allows for versatile applications in both commercial and residential settings. The controller’s high accuracy ensures that users can maintain optimal conditions, whether in a cold storage facility or a temperature-sensitive environment.

Another key characteristic of the CR202EM8 is its integrated humidity sensor. This feature allows for real-time monitoring and control of humidity levels, which is crucial in preventing mold growth and preserving product integrity in various storage situations. The device supports both temperature and humidity control, making it a comprehensive solution for those looking to optimize their environmental conditions.

The CR202EM8 also boasts user-friendly programming and a clear display interface. The intuitive menu system simplifies setup and configuration, enabling users to quickly adjust settings according to their specific requirements. Additionally, the backlit LCD display ensures that data is easily readable, even in low-light environments.

Durability is another important aspect of the CR202EM8. Built with high-quality materials, this controller is designed to withstand the rigors of various industries. Its robust construction ensures longevity and reliability, contributing to lower maintenance costs and reduced downtime.

Furthermore, the Emerson CR202EM8 is equipped with advanced communication capabilities. It supports various protocols, including MODBUS, facilitating integration into existing systems. This feature allows for seamless data exchange and remote monitoring, enhancing operational efficiency.

Energy efficiency is also a significant consideration in the design of the CR202EM8. By implementing smart algorithms, the controller optimizes energy consumption, leading to lower utility bills and a reduced carbon footprint.

In conclusion, the Emerson CR202EM8 temperature and humidity controller embodies cutting-edge technology with its precision control, integrated humidity monitoring, user-friendly interface, durability, advanced communication capabilities, and energy-efficient operation. These features make it an ideal choice for businesses and homeowners looking to maintain reliable and optimal environmental conditions.

Emerson CR202EM8 owner manual 5Troubleshooting Guide

Models: CR202EM8

TROUBLESHOOTING